Container



March 29, 1938. M. GRAFF ET AL 2,112,439

CONTAINER Filed Feb. 29, 1936 3 6 a e 3 6 8 a 7 r I 1} RT flllr a INVENTORS ay mfl wu WMd/VM/ ATTORNEYS Patented Mar. 29, 1938 UNITED sTArEs PATENT OFFICE CONTAINER Morris Graft, Wheeling, W. Va., and Wilbur A. Carrell, Pittsburgh, Pa.

Application February 29, 1936, Serial No. 66,330

1 Claim. (01. 220-67) Our invention relates to containers, particularly to containersmade of sheet metal.

It has been known for yearsthat the bodies-of nail kegs, oil drums, large paint cans, and the ends of the keg are provided with heads of compressible material, and advantageously circular discs 3 of compressible wood are used.

Adjacent each end of the body I, a circumferlike, may be constructed of sheet metal, and it entially extending groove or croze l is formed in 5 has been realized thatcertain advantages may the sheet metal, providing within such body a begained by using Wooden heads in the sheet- Seat 5. Through each open end of the body a metal bodies of such containers. So far as we are head 3 is introduced, Fig. III, and positioned in aware, however, none of the hitherto proposed per p al engagement with the Seat Then wood-and-metal containers has enjoyed wide t e adjace t C u d of the Sheet metal 10 commercial success. In many of the proposed cylinder is rolled downward, providing a chime 6 structures the wooden heads are not adequately that p p y ov r t head 3 and Serves secured in assembly with the sheet metal bodies; to hold the head to its seat. While the invention in others, in which security and rigidity of asis found in structure of this general nature, it

sembly are present, the heads are not sealed in will be understood that our inventive contribul5 assembly, in such manner as to provide a liquid tion lies in specific refinements. proof container; and in those containers which In accordance with the invention, we so shape avoid these objections, we find such elaborations the outwardly open groove or croze 4 in crossin structure as to make the cost of production section that the seat or face 5 is inclined or chamand the labor of installation too great for pracfered in the area engaged peripherally by the 20 tical purposes. wooden head 3, and the direction of inclination of Our invention consists in specific refinements the seat 5 is downward and inward with respect in structure, by virtue of which a. wooden head to the adjacent peripheral edge of the cylindrical may be rigidly secured and adequately sealed in shell. In still further refinement, the head 3 is assembly with the sheet metal body of a conperipherally bevelled or chamfered, forming an 25 tainer. We dispense with special fastening inclined face as indicated at 3a in Fig. III, means, and avoid the use of specialized multiplewhereby the head is d p Seat snugly p piece heads, to the end that simplicity and econthe inclined seat, as shown in Fig. IV. Then, omy may be obtained in largest measure. by means of instrumentalities with which this In the accompanying drawing the invention is invention is not immediately concerned, we not 30 shown, by way of illustration and not limitation, only roll or coil the peripheral edge of the sheet as it is embodied in a nail keg. Fig. I shows the metal cylinder inward, into the form of the keg in side elevation, and Fig. II shows it in end peripheral chime or bead 6, but additionally, in elevation; Fig. III is a fragmentary view of the forming such chime or bead, we force the underkeg in axial section, and to larger scale, and turned edge of the sheet metal into the periph- 5 illustrating the head in course of assembly with eral body material of the head, as indicated at the body; Fig. IV is a similar view, showing the 1 in Fig. V. That is to say, the compressible peassembly completed; Fig. V is a fragmentary secripheral edge of the head 3 is subjected to subtional view, showing the completed assembly of stantial compressive stress, thereby forcing the 40 Fig. IV to still larger scale; and Figs. VI and chamfered periphery of the head with wedging 40 VII are views comparable with Fig. V, severally efiect against the inclined seat 5. I Manifestly,

' illustrating modifications in detail. the peripheral wedging of the head 3 against the Turning to the drawing, our keg includes a seat 5 is such in nature as to tend radially to excylindrical body I of sheet metal, say a single pand the seat and the adjacent wall of the cylinrectangular piece of sheet steel, curled into cyder 5, thereby subjecting such seat and wall to 45 lindrical form and welded in known way along tension in a circumferential direction, with the its overlapped edges la. Two or more cir-cumconsequence and effect that the usual wrinkles ferential ribs 2 are pressed in the sheet metal and irregularities found in die-pressed sheet body of the cylindrical shell. Such ribs strengthen metal seats are entirely removed, or are caused the shell, and facilitate the rolling of the finished to conform to the periphery of the head. Within 50 keg upon its side. the inner and outer fiat faces of the head, the

One end of the keg may be provided in usual peripheral edge of the head is compressed beway with a sheet metal head, and the opposite tween the chime and the inclined seat, and this end with a head of compressible material in accompression, by virtue of the wedging effect alcordance with our invention. In this case both ready described, insures (throughout the periph- 55 ery of the head) a snug surface-to-surface engagement with the walls of the cylinder l, and provides the desired liquid tight and rigidly secure integration of the parts. Such structure has been found efiective to exclude atmospheric moisture from the interior of the container, and, manifestly, such characteristic is particularly valuable in the case of nail kegs and the like.

While the use of a resilient or compressible gasket or a ring of rigid material, between the head and the seat (or between the chime and the head) is within contemplation of the invention it will be understood. that, by virtue of the structure described, such use of gaskets or the like is, advantageously, avoided.

In Fig. VI we illustrate that the periphery of the head 3 may be chamfered at 3?), as well as at 3a, whereby the head-compressing chime 6 is effective upon the chamfer 3b rather than on the fiat, outer face of the head. In further modification the chime 6 may be formed by first pressing the sheet metal inward against the chamfer 3b and then rolling the outer edge of the metal outward and downward, as indicated in Fig. VII. In such case the compressive stress is exerted upon the wood by the inner portion 8 of the chime. And in still further modification and refinement, a circumferential rib or ridge 9 (Fig. VI) may be formed in or comprise the seat against which the periphery of the head is compressed. The rib bites into the compressible periphery of the head and further cooperates to the ends in view.

We claim as our invention:

A container comprising a sheet of metal formed into an open-ended cylinder united along its meeting or overlapping edges, and a head secured in an end of said cylinder, said head consisting in a discular member formed of compressible wood, and the wall of said cylinder including adjacent said end of the cylinder an inwardly projecting circumferential groove, with the sheet metal in which the groove is formed providing an inwardly and downwardly inclined circumferential face within the cylinder, said head having a peripheral, inwardly and downwardly inclined face which engages said first face, and the adjacent edge of said cylinder being coiled into a circumferential chime peripherally compressing said head and tightly pressing said inclined face of the head against said first face.

MORRIS GRAFF. WILBUR A. CARREIL. 

